Lock-switch.



B. P. SWYRS.

Loox swucH. APPLICATION FILEVD SEPT' 25, l9l5.

Patented 00u 30.1917.l

2 SHEETS-SHEET 2.

lNVENTOR.

WITNESSES:

UNUED s'rATEs PATENTQFFICE.

-mucn r. swr-isms,- or ITTSBUNGH, PENNSYLVANIA, AssIGNoB 'ro microns noci; COMPANY or AMERICA', or mfr'rsiannon, PENNSYLVANIA, A- conronA'rIoN or.

l To all 'whom it mayleioncem:

Be it' known 4that I, .Buren PHANnns Swrnns, a citizen'of the United Stutes,`and

-n resident of Pittsburgh, in the county of Allegheny and State o Pennsylvania., have Y invented e new ,and useful Improvement; in

Lock-Switches; and' I do, herebyr declare the following to be e full, clear, md exact de scri tion thereof.

y Ainvention''pertaix'isto electric lockf. switches, and relates particularlyto -loclif4 is the principal o ject of'my'inyention4 to" improve upon V switches of this fnaturey It is another obectl of my invention t o provide n locks\ 'vtc of. the 'permutation type,

which 'T will beof -simplemideox'npact con- Y without Vprevious knowledge o the combi struction 'und 4easy to 'manufacture 'and whichwill lrender it impossible toY completethe cfircuits necessary for runnin the'englne nation, -`Other and furtherobjects of'iny;

.invention -will vappear from the following description ta-ken' in 4connection .with the the following speci cation-and shown inthe accompanying drawings,`- one" form of.'lock switchonstruc'ted in accordance lWith Vmy invention. Ii wish it understood, 'h owever, that the'inventiqn may be embodied 1n other forms, and thatchnnges 4may befmnde inthe forxnwhich `'isdes'crib'edend shown, without 'exceedigthe scope' of the inyentionns Ydefined in ythe appended clzliinsn A"In the drowings:

` '.-Figurc 1- 1s n diugrzfm illustrating the functions performed by the lock-switch l which isdescribed herein; y

4 Fig. 2 is-,aside elevation of @lock-switch constructed4 "in accordanceV with .my invention, the outer casing being' broken sway;v -Fi 3 is s'ectiontnlten'on thellnc' of Fig. 2looliing".intlieLilircction of' the arrows;

face views 'of the 'inverted plan, respec tively,of` @the top' hub andthe contact carried Locxfswrron.

. Specification o! Letters Totem.4 Appuuon md september 25,101.5.' seal-No. 52,551.

n Referring now to l lished,

switch.

Figs. 6 and; are :eleie'tion ends-lien Figs. s nd am similarviews ofoleboe tom and the contacts carried ltherebyl vLike :reference characters refer, to like parts throughout the following specification figures of thefoccompanying A and the several 1"'i1fgS- l l x v Fig.- 1, lOvdesi-gnates't-he coil of the battery circuit in theiignition System 'of an'aut'omobile, and

11 designates' a conductor' for' connecting Patenteaoctgao, 191'?.

.the @il 1o with terminal ieomhe switch. as

.The switch also hasn terminal 14 to which Y is' connected the groundin magneto' 16, and has a terminal 17,150 which.

is connected, by a wire1 8,one terminal of f y battery-'being groundefL The switch is' ro? vided with enotlier'nnninal, 20,: whic is"4 connected, by a, conductor 21', with electhe battery 19, the other terminal of -the trically operted hoodilocks 22, 22, having operating switche'sf23,r2 3 in the circuits thereof.. l 'A ground :connection 24j-s estab- The .functions performed byl'the lock- I 4switchto'be described below are as follows: l l A switch-lever'is provided which is capable l I have described byl Wn'yf ofexarnple, m-

of assuming three positions; v-In theWfirst position, .the terminal 17 is plece'd in Acon-A nectionlwith the terminal 13,` 'thereby erpreferably through the casingof the' is broken between 't 1e terminls 17 and`13,'j

sind connection'isestablishlbetween the magneto groundingwirel nnd'theground' 'con'nection24.A In thissecond "position of the switch, the, magneto is 'groundediand established between the terminals 417. and

2.0,;the`reby -frnishing current to: permit the battery'is ont. oir'. V -In the. ,third position of the-switch-lever the connectin'is broken y between the terminals 13 and 17', and'is'also broken between the miigneto grounding wire 15'nnd theground 'connectionV 2 4. lIn this l' last osition`of 'theswitchlever 'the' "engine,

ree

ofeither Vhood-lock 22 beingfoperated by f means ofgits'switch 23'.4 vThe -above connec-" i tions nre only mede when the lockV is set to :its proper combimition. 'The lock is' rovided with three contact arms, each of w lich is'separstely movaible-nnd'm'ustbe 'set to' the l right position'before the proper'connections can be nitide by means of 'the switch arnr referred to ab'o're.

When any one of tho confacbaru'is Ls out of itsfcorrect. position, connection is broken between the terminals lif and 2l). therebyf rendering it, impossible to openilii the 'howl-locks; connection is broken between theztcriuinals li' and 23," thereby preventing the' engine.- froui being lrun on batter and connection established 29,'wliieh isi-closed at 4tlie'to'p b v a glass 30. Mounted on the top of tli'edis.: is .a diii'l' Rotatablgmounted i'n the. .d isk 2T' isA aspindle 32 liavinga squared portion 33 -iipoli-whiclr-'is' mounted an insulating hub 34. The htili tfhas secured rigidly to the top. sideLtliereofya contact arm 35. and liasiiiouiited onthe'bottoin` side thereof. a contact Aarm 36. T lie contact ai-in 3G is rol tatable with respectto't-he hub within limits -which are. bounded by a. slot 3T.- therein,

. through! which Apasses 'a serewBS. Rota.-

. upwardly extending l oss.t1,.uponwhich a metallic'switcl i-lcver 42 s'niomi'ted as;

tably mounted oii .tlie"spindle32. between the disks and-26,'is a. hub 39 made of brass or other conducting material.' Seciurd to the lower'sidc ofthe.` hub 39 is aV contact arm. .40. 3 The 'linbtl is `foifmed with .an

to be capable of swinging aroma letame.,

'suchswitelidever extendingout through 'a suitable slot 'iii thecasing 29 and haring an ',"operiitiiigvandleon the end thereof. The.

59. i the' dial 31',`so as to be capable of being'.

top'part. of the boss 4l has aseginental re- .cess cut .out therefrom; -w'ith which iccess engages a segmental clutch-projection- 43 .formed on theend ofa sleeve-.i4 which cxtends upwardly through tlie 'glass 30 and terminates in a knurled knob 45. .The sleeve ries a, hand 46 whiclfiiorriially lies close to brought opposite to ahy. one of a seriesof 'indicia which' are cut -on the dial. .To prevent: rotation'of the sleeve 44 -upon the spin- 'dle 32,-arid4 .to limit -tlie sliding moiicment. .o ifthe sleeve-0nA Athe spindlega pin, 47 is passed`through tli'c spindle,` and' .engmgcs ends inslots 48.fo i ,jmed' in the. 'sleeve 44; In setting the combination. of the lockswitclrthe' knob 45 i s first turned untilthe Contact u'rm 40 isi-in the correct position,

which -position corresponds with aknown index number" on the dial 31 which the hand ,46'xiust point. The knob 45 'is then pulled upwardly', t lie reb disei'igaging the clutch-projectioi 43. from boss 41 ot' the hub Elf) and permittiii'g'the spindle to be rotated without alici-ling the position to whichthe hub lil!) has been brought. The. 4knol) 4.5 is thenA turned to bring the-"contact arm 36 into the correct position. which position is indicated In" a 'second number on th'e dial posite direction, to bri-iig lhe` contact aini i into the correct position. indicated b r a third number on the dial` Vthe slot and pin connect-ion between the contact arm 3G and the linb 34 permitting,r the contact. 3616 remain stationary during this last. turningv .movement In Fig. 5, of the drawings, the lower side of the. disk 2 is shown 'at A, the upper sidiof .the saine disk atll, the lower side ot` the disk 26'at.' C, the upper side of-the disk 26 at Df-iin'd the lower side of the disk 1 3 iat E. The upper side li of the disk 2T caij ries an outer 'contact strip- 49, such strip being in the forni of a circle haring a short port-ion broken out therefrom. .\t th'e center of the. broken ont portion a contact 50.

isjproi'ided. An arcuate inner contact strip 51 isvmuntcd .within the strip {Si} Oire end of' thc strip 51 terminates on a linewith ond-end of the strip 49: but the other end -of tlie-strip 51 terminates some distance short of the. other 'cud of the strip 49. Adjacent this lastiianied Aend of the strip 51,

a. contact 52 is provided. 4'On the bottorn surface of .thidisk. 26.- are n iourited outer and inner contact strips 49". and 51". and

contacts and 52'?, similar to the Strips 4Q and and .contaetsjil and 52 referred to. above. (in the top sidefD of thel disk 26 are mounted outer and inner contact strips 49. and 5l". and tliecontact 50", similar' to and 49".are- -all connected taground.- The conta-ct strips 51,- 51* and '51 are all lconthestrips 4t) and 51 and the contact 50 re ferred to above. The contactstrips 49, 49"..

11o' -nected with the terminal 14,151'. e. with the,- groundnig wire of themagneto. The con-1 tact 50 is connected witlrthe terminal. 17', i

i.' a. with gthe battery. connected with the' contact.I 521; and the contact 50* is connected' with ,the contact 50".

iis

on am ander Side E, ef thedisi 25 isv iiionnted an arc-shaped contate, a -part' A contact 54, conceiitric with'thecontact., 53 is also rovided, such contact being. con-' nected wit the termina 1 13, i. e. ivitlrtiie coillO. yThe ends of the contacts 53 and-5 4 are disposed adjacentt'o each other, and are inclined,V so that "a portion of the switch'-A lever 42 will still rest 011 the Contact 5.3 when 'the "switch-lever is' swung over to engage switch, :is a'pplied'to a very usual forni of: automobile ignition circuit, it may be .api

pliml'ro other circuits, what' 1 claim being: l. ln a loclesu'itcli a rotatable shaft, a contact ixedli1 associated with said shaft, a svi'ond contact haringT a lost-iiiotion ron- -irection with said shaft. a seconds-haft conlatalile therewith, a contact. mounted to ro- State with respect to said ii'st-iiaiiied shaft,

alnl a elu'teh between said second iiaiiicd shaft and said rotatable contact.

El. ln a lock-switch a lshaft having a contact Iixedly associated therewith, a secondi contaetrotatable. with respect thereto, a

biisliing-slidably mounted on said shaft and' rota-table. therewith, and a. clutch connectionl lictii'een said :bushing and and rotatable contact.

- 2b' ,In a lock-switch ashaft, a contact tixedly associated with said shaft,4 a second contact having lost-motion connection with said shaft, a contact rotatable with respect .tosad shaft, a busliingslidably mounten,

on said shaft and rotatable therewitlnand a. clutch connection -between said bushing and saidrotatable contact.

4. 1n a. lockswitch,'a frame, a. dial'carciatcdwvithsad shaft, a second contact hav-V ing a lost-motionconnection with said shaft,

'a 'contact rotatably mounted on said shaft,

contacts onsaid .base member,

'contact 'carried by said ba la bushingr slidably mounted on siiid shaft and rotatable therewith, a hand -carried by said bushing and located adjaceii Said dial, and a clutch connection between said bushing and said rotatableA contact.

(S. In a lock-switch a base m mber, fixed a'n intermediate member, fixed contzicts'cirried by the lower s ide of said intermediate member,

fixed contacts carried by the jupper side of said intermediate member, a shaft mounted to rotate with respect to s 1d members, a

member, a second contact carried by said shaft and cooperating with the4 fixed contact on the lower side of said intermediate member, one of said coi'itjacts being fxedly associated with saidl shaft andthe other 'of 'saifd contacts having a lost-motion connection v with said shaft, a contact rotatably mounted on said sl'iaftto coperate with the 'fixed contacts on'theupper side of said intermediate nicmlzrr, a bushing slidably mounted on said shaftand rotatab etherewith, and aclutch A connection between said bushing and rotatable contact.- l

7 In n lock-switch, a shaft having n con tact txedly aocinted therewith, a second contact having a lost motion connection with said shaft, n second shaft concentric with said first-named lshaft and 'rotatable there with, agbii'shing 'slidably mounted on said shaft and rotatabletherewitlr, and a clutch connection betweenA said bushing and said rotatable contact. 4I n testimony whereof,` I the s ad BRICE "CHAWLG'f Coni- 

